
Divide by 3 on both sides:

Square root both sides:

Take away 3 from both sides:

Divide by 2 on both sides:

Answer:
Using average makes these scores seem overall low: because it you add them up and divide them by the quantity you get 61.5 as the average which is low for a quiz grade
Answer:
[0,∞) {y║y≥0}
Step-by-step explanation:
The absolute value expression has a V shape. The range of a positive absolute value expression starts at its vertex and extends to infinity.
18/30 simplifies into 6/10 which then is put in decimal form of 0.6